Ethyl 6,7-difluoro-1-methyl-4-oxo-4h-[1,3]thiazeto[3,2-a]quinoline-3-carbox

The service bichal supply: 1.independently or jointly develop, produce and sell apis, pharmaceutical intermediates and special chemicals. 2.import and distribution of apis and intermediates 3.contract production/custom synthesis for gram-kilogram-ton chemicals.(please supply related reference and synthesis methods if have)